PSI - Issue 84

Chiara Galatà et al. / Procedia Structural Integrity 84 (2026) 1–8

6

B07 B08 B09 B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20

6 4

L H H

L

M–L

M

M–H M–H

M

M–L M–L M–H

H H

M–H M–H

M–H

12

H

H

7

M–H

M–H

H H H H

M–H

M–H

17 42 41 20 23

H

H

H

H

H H H H H

M–H M–H

M–H M–H

M–H M–H M–H M–H

M–H M–H

M M

M M

M–H M–H M–H M–H M–H M–H

M M M M M M

5 9 9 7 4

M–L M–L M–L M–L M–H

M–L M–L M–L M–L M–H

M M M M

M–H M–H M–H M–H

M–H

H

H

H

4. Method for cross–framework re–interpretation In this section we re–map the MIT evidence to each framework’s decision logic: • USA (NBIS/BIRM + AASHTO MBE). High DEF or tendon–critical symptoms ⇒ flag critical–finding candidate and require LRFR rating check for posting/closure; Medium ⇒ maintain intervals with targeted checks; Low ⇒ routine intervals. • USA (Caltrans element–level). Convert defects to Condition States on primary elements: DEF=H ⇒ CS4 (or ΣCS3 ≥25%) and structural review; DEF=M ⇒ CS2–CS3; DEF=L ⇒ CS1–CS2. • France (CEREMA/ITSEOA F32). DEF=H or PT suspicion ⇒ targeted inspection (endoscopy, IE/UT, electrochem.); if confirmed, reinforced surveillance or repair with acceptance monitoring; DEF=M ⇒ periodic detailed + targeted tests; DEF=L ⇒ routine/evaluation. • Netherlands (RWS RBK). Prepare plan of approach and verify at AII (actual use) when DEF is High or layout is unfavourable (large spans, many spans, continuity). If non–compliant ⇒ AIII with management/execution measures. Consider proof– load testing when model/data uncertainty dominates; acceptance guided by β targets and residual life. Table 3 reports the application of the U.S., French and Dutch logics to the same 20 bridges to obtain like–for–like operational decisions.

Table 3. Cross–framework operational decisions for the case–study bridges

Bridge

US_Fed (CF / LRFR)

Caltrans (MaxCS / Review)

CEREMA (Action)

RBK (Level / Measure)

B01 B02 B03 B04 B05 B06 B07 B08 B09 B10 B11

No / Yes No / Yes No / No No / Yes No / No No / No No / No No / Yes No / Yes No / Yes No / Yes

CS4 / Yes

Reinforced

AII / Mgmt AII / Exec AII / Mgmt AII / Mgmt AII / Mgmt AII / Mgmt AII / Mgmt AII / Mgmt AII / Exec AII / Mgmt AII / Exec

CS3–4 / Yes CS2–3 / No CS3 / Yes CS2–3 / No

Targeted→Reinforced Periodic detailed Periodic + targeted Periodic detailed

CS2 / No CS3 / No CS3 / Yes CS4 / Yes CS3 / Yes CS4 / Yes

Routine

Periodic detailed

Targeted

Reinforced

Periodic + targeted

Reinforced